Optical homogeneity and photorefractive properties of stoichiometric and congruent lithium niobate crystals grown using charges of different origins


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A stoichiometric lithium niobate crystal (LiNbO3 st) and congruent lithium niobate crystals grown from a charge prepared using cyclohexanone as an extractant (LiNbO3 cong(CHN)) and a charge prepared using cyclohexanone and carboxylic acid dimethylamides as extractants (LiNbO3 cong(CHN + A)) have been characterized by photoinduced light scattering and laser conoscopy. The results demonstrate that the LiNbO3 cong(CHN + A) crystals are rather homogeneous along their growth direction and possess good optical properties, similar to those of the LiNbO3 cong(CHN) crystal. At the same time, the LiNbO3 cong(CHN + A) crystal offers significantly better electro-optical properties (re = 29.3 pm/V).

作者简介

N. Teplyakova

Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center

编辑信件的主要联系方式.
Email: tepl_na@chemy.kolasc.net.ru
俄罗斯联邦, Akademgorodok 26a, Apatity, Murmansk oblast, 184209

N. Sidorov

Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center

Email: tepl_na@chemy.kolasc.net.ru
俄罗斯联邦, Akademgorodok 26a, Apatity, Murmansk oblast, 184209

M. Palatnikov

Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center

Email: tepl_na@chemy.kolasc.net.ru
俄罗斯联邦, Akademgorodok 26a, Apatity, Murmansk oblast, 184209

A. Syuy

Far East State Transport University

Email: tepl_na@chemy.kolasc.net.ru
俄罗斯联邦, ul. Serysheva 47, Khabarovsk, 680021

D. Shtarev

Far East State Transport University; Kosygin Institute of Tectonics and Geophysics, Far East Branch

Email: tepl_na@chemy.kolasc.net.ru
俄罗斯联邦, ul. Serysheva 47, Khabarovsk, 680021; ul. Kim Yu Chena 65, Khabarovsk, 680000

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